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3.7可塑度3.7.1前言一般将应力超过某一极限时,物质开始流动的性质称为塑性,将其极限应力称为屈服值[1]。所以,在一般非线性粘弹性中,具有明确的形状屈服值的性质和塑性不同。但是,橡胶的可塑度稍微脱离这个定义,多使用包括一般非线性粘性或非线性粘弹性在内的更宽的含义。作为可塑度
3.7 Plasticity 3.7.1 Foreword Generally, when the stress exceeds a certain limit, the material that begins to flow is called plasticity and its ultimate stress is called yield value [1]. Therefore, in general non-linear viscoelasticity, the properties and ductility of having a definite shape yield value are different. However, the rubber’s plasticity slightly departs from this definition, using a broader meaning, including general non-linear viscous or nonlinear viscoelasticity. As a degree of plasticity